shijimasoft/cia-unix
1
Fork 0
mirror of https://github.com/shijimasoft/cia-unix.git synced 2025-06-19 14:55:42 -04:00
Code Issues Actions Packages Projects Releases Wiki Activity

Merge pull request #24 from R-YaTian/contentId

Browse Source 
append content id to ncch filename
This commit is contained in:
Nishijima Akito 2024-09-21 09:42:39 +02:00 committed by GitHub
commit 01fe17a1cd
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
decrypt.py
View File

@ -292,7 +292,7 @@ def parseCIA(fh):
fh.seek(contentOffs + nextContentOffs)
ciaHandle = ciaReader(fh, cEnc, titkey, cIdx, contentOffs + nextContentOffs)
nextContentOffs = nextContentOffs + align(cSize, 64)
parseNCCH(ciaHandle, cSize, 0, cIdx, tid, 0, 0)
parseNCCH(ciaHandle, cSize, 0, cIdx, cId, tid, 0, 0)
def parseNCSD(fh):
@ -307,13 +307,14 @@ def parseNCSD(fh):
header.offset_sizeTable[i].size * mediaUnitSize,
header.offset_sizeTable[i].offset * mediaUnitSize,
i,
i,
reverseCtypeArray(header.titleId),
0,
1,
)
def parseNCCH(fh, fsize, offs=0, idx=0, titleId="", standAlone=1, fromNcsd=0):
def parseNCCH(fh, fsize, offs=0, idx=0, contentId=0, titleId="", standAlone=1, fromNcsd=0):
tab = '\t' if not standAlone else " "
if not standAlone and fromNcsd:
print(f" Parsing {ncsdPartitions[idx]} NCCH")
@ -331,6 +332,7 @@ def parseNCCH(fh, fsize, offs=0, idx=0, titleId="", standAlone=1, fromNcsd=0):
print((tab + "KeyY: %032X" % ncchKeyY))
print(tab + f"Title ID: {reverseCtypeArray(header.titleId)}")
print(tab + f"Format version: {header.formatVersion}")
print(tab + f"Content Id: %08X" % contentId)
usesExtraCrypto = bytearray(header.flags)[3]
if usesExtraCrypto:
print((tab + "Uses Extra NCCH crypto, keyslot 0x%X" % {1: 37, 10: 24, 11: 27}[usesExtraCrypto]))
@ -349,7 +351,7 @@ def parseNCCH(fh, fsize, offs=0, idx=0, titleId="", standAlone=1, fromNcsd=0):
print((tab + "Uses 9.6 NCCH Seed crypto with KeyY: %032X" % keyY))
print("")
base = os.path.splitext(os.path.basename(fh.name))[0]
base += f".{(idx if fromNcsd == 0 else ncsdPartitions[idx])}.ncch"
base += f".{(idx if fromNcsd == 0 else ncsdPartitions[idx])}.%08X.ncch" % contentId
base = os.path.join(os.path.dirname(os.path.realpath(sys.argv[0])), base)
with open(base, "wb") as (f):
tmp = tmp[:399] + chr(tmp[399] & 2 | 4).encode() + tmp[400:]